If Google determines that your request and the token are valid, it returns the requested data.

Some flows include additional steps, such as using refresh tokens to acquire new access tokens. For detailed information about flows for various types of applications, see Google's OAuth 2.0 documentation.

To request access using OAuth 2.0, your application needs the scope information, as well as
information that Google supplies when you register your application (such as the client ID and the
client secret).